CN110924337A - Rotary joint, road surface cleaning device and washing and sweeping vehicle - Google Patents
Rotary joint, road surface cleaning device and washing and sweeping vehicle Download PDFInfo
- Publication number
- CN110924337A CN110924337A CN201911045267.1A CN201911045267A CN110924337A CN 110924337 A CN110924337 A CN 110924337A CN 201911045267 A CN201911045267 A CN 201911045267A CN 110924337 A CN110924337 A CN 110924337A
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- mandrel
- shell
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
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Abstract
The invention provides a rotary joint, a road surface cleaning device and a washing and sweeping vehicle, wherein the rotary joint comprises a shell, a first mandrel matched with the sealing end of the shell for circumferential positioning, a second mandrel rotatably attached with the end surface of the first mandrel, a first sealing element for sealing the opening end of the shell, a second sealing element for dividing the inner cavity of the shell into a water storage cavity and a lubricating cavity and a bearing assembly positioned in the lubricating cavity, the sealing end of the shell is provided with a first through hole, the first mandrel is provided with a second through hole, the second mandrel is provided with a third through hole to form a first water flow channel for leading water flow to flow from the first through hole to the third through hole, the first mandrel is provided with a siphon hole for communicating the water storage cavity with the second through hole, and the included angle between the axial direction of the siphon hole and the water flow direction is an obtuse angle, so that water permeating into the water storage cavity in the first water flow channel flows back into the first water flow channel through the siphon hole, thereby reducing the risk of water in the water storage cavity penetrating into the lubricating cavity.
Description
Technical Field
The invention relates to the field of rotary joints, in particular to a rotary joint. In addition, the invention also relates to a road surface cleaning device comprising the rotary joint. In addition, the invention also relates to a washing and sweeping vehicle comprising the road surface cleaning device.
Background
A swivel is a connecting part where the water flow is fed from a stationary pipe into a rotating device. In the long-term use process, water in the water flow channel of the rotary joint can gradually permeate into the lubricating cavity of the rotary joint, the lubricating environment of the bearing is damaged, and the service life of the rotary joint is influenced.
Disclosure of Invention
The invention provides a rotary joint, a pavement cleaning device and a washing and sweeping vehicle, and aims to solve the problem that the service life of the rotary joint is influenced because water in a water flow channel of the rotary joint permeates into a lubricating cavity of the rotary joint.
The technical scheme adopted by the invention is as follows:
the invention provides a rotary joint, which comprises a shell, a first mandrel, a second mandrel, a first sealing element, a second sealing element, a bearing assembly and a second mandrel, wherein the first mandrel is arranged in the shell and is matched with the sealing end of the shell to carry out circumferential positioning, the second mandrel is arranged in the shell and is rotatably attached to the end surface of the first mandrel, the first sealing element is sleeved on the second mandrel and is used for sealing the opening end of the shell, the second sealing element is sleeved on the second mandrel and is used for dividing the inner cavity of the shell into a water storage cavity and a lubricating cavity, the bearing assembly is sleeved on the second mandrel and is positioned in the lubricating cavity, the second mandrel is rotatably arranged in the shell through the bearing assembly, the sealing end of the shell is provided with a first through hole, the first mandrel is provided with a second through hole communicated with the first through hole, the second mandrel is provided with a third through hole communicated with the second through hole, the first mandrel is provided with a siphon hole for communicating the water storage cavity with the second through hole, and an included angle between the axial direction of the siphon hole and the water flow direction is an obtuse angle, so that water permeating into the water storage cavity in the first water flow channel flows back into the first water flow channel through the siphon hole under the siphon action, and the risk of the water permeating into the water storage cavity is reduced.
Further, the second through-hole includes shrink section, stable section and the expansion section that sets gradually along the rivers direction, and the radial dimension of shrink section reduces along the rivers direction gradually, and the radial dimension of expansion section enlarges along the rivers direction gradually, and the siphon hole communicates with stable section.
Further, the first sealing element is a first framework oil seal sleeved on the second mandrel, and a lip of the first framework oil seal faces the lubricating cavity; the second sealing element comprises a second framework oil seal and a third framework oil seal, wherein the second framework oil seal is sleeved on the second mandrel, the third framework oil seal is sleeved on the second mandrel and is symmetrically arranged with the second framework oil seal, the lip opening of the second framework oil seal faces the water storage cavity, and the lip opening of the third framework oil seal faces the lubricating cavity.
Furthermore, the bearing assembly comprises a first bearing sleeved on the second mandrel, a second bearing sleeved on the second mandrel and arranged at an interval with the first bearing, and a bushing sleeved on the second mandrel and positioned between the first bearing and the second bearing, wherein the second mandrel is rotatably arranged in the shell through the first bearing and the second bearing.
Furthermore, a pre-tightening spring used for forcing the first core shaft to be pressed towards the second core shaft is arranged between the sealing end of the shell and the first core shaft.
Furthermore, the side wall of the shell is provided with an oil nozzle which is convenient for adding lubricating oil into the lubricating cavity.
Further, the shell comprises a first shell and a second shell, wherein the first shell is used for forming the closed end of the shell, the second shell is used for forming the open end of the shell, and the first shell and the second shell are detachably connected.
The invention also provides a road surface cleaning device which comprises the rotary joint, a rotary piece connected with the second mandrel of the rotary joint and used for driving the second mandrel to rotate, an installation joint connected with the rotary piece and connected with the end surface of the second mandrel in a sealing manner, a spray rod connected with the installation joint and a nozzle arranged at the output end of the spray rod, wherein a fourth through hole communicated with the third through hole in the second mandrel is formed in the installation joint, and a fifth through hole communicated with the fourth through hole is formed in the spray rod so as to form a second water flow channel for water flow to flow from the third through hole to the nozzle.
Further, the internal thread hole has been seted up on the attach fitting, and the input of spray lance is equipped with the bulge loop, and the cover is equipped with lock nut on the spray lance, lock nut be equipped with internal thread hole screw-thread fit's external screw thread, the input of spray lance stretch into the internal thread hole and screw up through lock nut and internal thread hole to make lock nut top support the bulge loop, thereby compress tightly the spray lance at the internal thread hole.
Furthermore, a guide groove is formed in the hole wall of the internal thread hole, and a boss which is used for extending into the guide groove to circumferentially position the spray rod is arranged on the convex ring.
Further, the output end of the nozzle is deviated to the rotating direction of the rotating piece; the included angle between the axial direction and the vertical direction of the nozzle is 3-50 degrees.
Further, the number of the spray bars is at least two, and the at least two spray bars are uniformly distributed at intervals along the circumferential direction of the mounting joint.
The invention also provides a washing and sweeping vehicle which comprises the road surface cleaning device.
The invention has the following beneficial effects:
the rotary joint comprises a shell, a first mandrel, a second mandrel, a first sealing element, a second sealing element and a bearing assembly. The first mandrel is matched with the sealing end of the shell, so that the sealing end of the shell can circumferentially position the first mandrel. The bearing assembly is sleeved on the second mandrel, and the bearing assembly can support the second mandrel so that the second mandrel can be rotatably arranged in the shell. Because the second dabber is rotatable to be set up in the casing, and the terminal surface of second dabber and the rotatable laminating of the terminal surface of first dabber for the second dabber can carry out circumferential direction and rotate, and first dabber circumferential direction location can not carry out circumferential direction, and the second dabber can carry out circumferential direction for first dabber promptly. The first mandrel is connected with the stationary pipe, and the second mandrel is connected with the rotating device, so that the connecting effect of the rotating joint is realized. The first seal may seal the open end of the housing, i.e. the first seal may seal the inner cavity of the housing. The second seal may divide the inner cavity of the housing into a water storage cavity and a lubrication cavity. The lubricating cavity is filled with lubricating oil, the bearing assembly is located in the lubricating cavity, and the lubricating oil can provide a lubricating environment for the bearing assembly. The end of the shell which is sealed is provided with a first through hole, the first mandrel is provided with a second through hole, and the second mandrel is provided with a third through hole. The first through hole is communicated with the second through hole, the second through hole is communicated with the third through hole, so that the first through hole, the second through hole and the third through hole form a first water flow channel, water flow can flow to the third through hole from the first through hole, and the water flow can flow to the rotating equipment from the static pipeline. The first mandrel is provided with a siphon hole, and the siphon hole can communicate the water storage cavity with the second through hole. The included angle between the axial direction of the siphon hole and the water flow direction is an obtuse angle, so that water in the second through hole can be prevented from flowing into the water storage cavity through the siphon hole. When water in the first water flow channel permeates into the water storage cavity through the binding surface between the first mandrel and the second mandrel and is gradually accumulated, the water pressure is high because the water in the water storage cavity does not flow, and the continuous flowing water pressure of the water in the second through hole is low, so that a siphoning effect is generated, and the water in the water storage cavity flows back into the second through hole through the siphoning hole. Through setting up the siphon hole, can form an inside hydrologic cycle for in the rivers that permeate the water storage intracavity from first rivers passageway return the second through-hole, prevent water accumulation in the water storage intracavity, reduce the water yield and the water pressure of water storage intracavity, reduce the risk of the water infiltration in the water storage intracavity lubrication intracavity, make bearing assembly be in good lubricated environment, improve rotary joint's life. The rotary joint has the advantages of compact structure, good sealing performance, durability and convenient maintenance.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a rotary union of a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first mandrel of a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a pavement cleaning apparatus in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic view of a collar and lock nut of a preferred embodiment of the present invention;
FIG. 5 is a schematic view of a boss of a preferred embodiment of the present invention;
FIG. 6 is a schematic view of the axial deviation of the nozzle of the preferred embodiment of the present invention from the direction of rotation of the rotating member;
fig. 7 is a schematic perspective view of a road surface cleaning apparatus according to a preferred embodiment of the present invention.
Description of reference numerals:
1. a first mandrel; 2. a second mandrel; 3. a water storage cavity; 4. a lubrication chamber; 5. a first through hole; 6. a second through hole; 7. a third through hole; 8. a siphon hole; 9. a contraction section; 10. a stabilization section; 11. an expansion section; 12. a first framework oil seal; 13. a second framework oil seal; 14. a third framework oil seal; 15. a first bearing; 16. a second bearing; 17. a bushing; 18. pre-tightening the spring; 19. a nozzle tip; 20. a first housing; 21. a second housing; 22. a rotating member; 23. installing a connector; 24. a spray rod; 25. a nozzle; 26. a fourth via hole; 27. a fifth through hole; 28. a convex ring; 29. locking the nut; 30. and (4) a boss.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
FIG. 1 is a cross-sectional view of a rotary union of a preferred embodiment of the present invention; FIG. 2 is a cross-sectional view of a first mandrel of a preferred embodiment of the present invention; FIG. 3 is a cross-sectional view of a pavement cleaning apparatus in accordance with a preferred embodiment of the present invention; FIG. 4 is a schematic view of a collar and lock nut of a preferred embodiment of the present invention; FIG. 5 is a schematic view of a boss of a preferred embodiment of the present invention; FIG. 6 is a schematic view of the axial deviation of the nozzle of the preferred embodiment of the present invention from the direction of rotation of the rotating member; fig. 7 is a schematic perspective view of a road surface cleaning apparatus according to a preferred embodiment of the present invention.
As shown in fig. 1, the rotary joint of the present invention comprises a housing, a first mandrel 1 disposed in the housing and engaged with a sealing end of the housing for circumferential positioning, a second mandrel 2 disposed in the housing and rotatably engaged with an end surface of the first mandrel 1, a first sealing member sleeved on the second mandrel 2 and used for sealing an opening end of the housing, a second sealing member sleeved on the second mandrel 2 and used for dividing an inner cavity of the housing into a water storage cavity 3 and a lubrication cavity 4, and a bearing assembly sleeved on the second mandrel 2 and located in the lubrication cavity 4, wherein the second mandrel 2 is rotatably disposed in the housing through the bearing assembly, the sealing end of the housing is provided with a first through hole 5, the first mandrel 1 is provided with a second through hole 6 communicated with the first through hole 5, the second mandrel 2 is provided with a third through hole 7 communicated with the second through hole 6, so as to form a first water flow channel for water flow from the first through hole 5 to the third through hole 7, offer on the first dabber 1 and be used for the siphon hole 8 with water storage chamber 3 and 6 intercommunications of second through-hole, the axial of siphon hole 8 is the obtuse angle with the contained angle between the rivers direction to make the water of infiltration in the first rivers passageway in the water storage chamber 3 flow back to the first rivers passageway through siphon hole 8 under the siphon effect in, thereby reduce the risk in the lubricated chamber 4 of water infiltration in the water storage chamber 3.
The rotary joint comprises a shell, a first mandrel 1, a second mandrel 2, a first sealing element, a second sealing element and a bearing assembly. The first mandrel 1 is fitted to the closed end of the housing so that the closed end of the housing can circumferentially position the first mandrel 1. The bearing assembly is sleeved on the second mandrel 2, and the bearing assembly can support the second mandrel 2, so that the second mandrel 2 can be rotatably arranged in the shell. Because the second mandrel 2 can be rotatably arranged in the shell, and the end face of the second mandrel 2 can be rotatably attached to the end face of the first mandrel 1, the second mandrel 2 can rotate in the circumferential direction, and the first mandrel 1 cannot rotate in the circumferential direction when being circumferentially positioned, namely, the second mandrel 2 can rotate in the circumferential direction relative to the first mandrel 1. The connection of the rotary joint is achieved by connecting the first mandrel 1 to a stationary pipe and the second mandrel 2 to a rotary device. The first seal may seal the open end of the housing, i.e. the first seal may seal the inner cavity of the housing. The second seal may divide the inner cavity of the housing into a water storage chamber 3 and a lubrication chamber 4. The lubricating cavity 4 is filled with lubricating oil, the bearing assembly is positioned in the lubricating cavity 4, and the lubricating oil can provide a lubricating environment for the bearing assembly. The end of the shell that seals is provided with a first through hole 5, the first mandrel 1 is provided with a second through hole 6, and the second mandrel 2 is provided with a third through hole 7. The first through hole 5 is communicated with the second through hole 6, and the second through hole 6 is communicated with the third through hole 7, so that the first through hole 5, the second through hole 6 and the third through hole 7 form a first water flow channel, water can flow to the third through hole 7 from the first through hole 5, and water can flow to the rotating equipment from a static pipeline. The first mandrel 1 is provided with a siphon hole 8, and the siphon hole 8 can communicate the water storage cavity 3 with the second through hole 6. The included angle between the axial direction of the siphon hole 8 and the water flow direction is an obtuse angle, so that water in the second through hole 6 can be prevented from flowing into the water storage cavity 3 through the siphon hole 8. When water in the first water flow channel permeates into the water storage cavity 3 through the binding surface between the first mandrel 1 and the second mandrel 2 and gradually accumulates, the water pressure is high because the water in the water storage cavity 3 does not flow, and the water pressure in the second through hole 6 is low after continuous flowing, so that a siphon effect is generated, and the water in the water storage cavity 3 flows back into the second through hole 6 through the siphon hole 8. Through setting up siphon hole 8, can form an inside hydrologic cycle for in the water flow back to second through-hole 6 from infiltration water storage chamber 3 in the first rivers passageway, prevent that water from accumulating in water storage chamber 3, reduce water yield and water pressure in water storage chamber 3, reduce the risk in the lubricated chamber 4 of water infiltration in the water storage chamber 3, make bearing assembly be in good lubricated environment, improve rotary joint's life. The rotary joint has the advantages of compact structure, good sealing performance, durability and convenient maintenance. Optionally, a key fit is adopted between the first mandrel 1 and the closed end of the housing to circumferentially position the first mandrel 1. Optionally, a positioning pin is disposed between the first mandrel 1 and the sealing end of the housing to circumferentially position the first mandrel 1. Optionally, a sealing ring is disposed on a mating surface between the first core 1 and the sealing end of the housing, so as to prevent water in the first water flow channel from permeating into the water storage cavity 3 through the mating surface. Optionally, in order to improve the wear resistance of the first mandrel 1 and the second mandrel 2, the first mandrel 1 may be made of a wear-resistant material, and the end surface of the second mandrel 2 is provided with a wear-resistant coating, so as to improve the service life of the rotary joint.
As shown in fig. 2, in this embodiment, the second through hole 6 includes a contraction section 9, a stabilization section 10, and an expansion section 11 that are sequentially arranged along the water flow direction, the radial dimension of the contraction section 9 gradually decreases along the water flow direction, the radial dimension of the expansion section 11 gradually increases along the water flow direction, and the siphon hole 8 is communicated with the stabilization section 10. When the water flows through the stabilizing section 10 having the smallest radial dimension, the flow rate is further increased and the siphon action is further enhanced, so that the water in the water storage chamber 3 is more easily flown back into the second through-hole 6 through the siphon hole 8.
As shown in fig. 1, in the present embodiment, the first sealing element is a first framework oil seal 12 sleeved on the second mandrel 2, and a lip of the first framework oil seal 12 faces the lubrication cavity 4. First skeleton oil blanket 12 is in between the lateral wall of second dabber 2 and casing, and the lip of first skeleton oil blanket 12 is towards lubricated chamber 4, can prevent that the lubricating oil in lubricated chamber 4 from oozing. Optionally, the second sealing element includes a second skeleton oil seal 13 sleeved on the second mandrel 2 and a third skeleton oil seal 14 sleeved on the second mandrel 2 and symmetrically arranged with the second skeleton oil seal 13, a lip of the second skeleton oil seal 13 faces the water storage cavity 3, and a lip of the third skeleton oil seal 14 faces the lubrication cavity 4. Second skeleton oil blanket 13 and third skeleton oil blanket 14 are in between the lateral wall of second dabber 2 and casing, and second skeleton oil blanket 13 and the symmetrical installation of third skeleton oil blanket 14 back to back, and the lip of second skeleton oil blanket 13 is towards water storage chamber 3, can prevent the lubricated chamber 4 of water infiltration in the water storage chamber 3, and the lip of third skeleton oil blanket 14 is towards lubricated chamber 4, can prevent that the lubricating oil in the lubricated chamber 4 from oozing. The framework oil seal can enable the bearing assembly to be in a good lubricating environment, and the service life of the rotary joint is prolonged.
As shown in fig. 1, in the present embodiment, the bearing assembly includes a first bearing 15 disposed on the second spindle 2, a second bearing 16 disposed on the second spindle 2 and spaced from the first bearing 15, and a bushing 17 disposed on the second spindle 2 and between the first bearing 15 and the second bearing 16, wherein the second spindle 2 is rotatably disposed in the housing through the first bearing 15 and the second bearing 16. By supporting the second spindle 2 by two bearings, a first bearing 15 and a second bearing 16, the second spindle 2 can be made more rotationally stable. The bushing 17 may axially position the first bearing 15 and the second bearing 16 to facilitate the installation of the first bearing 15 and the second bearing 16.
As shown in fig. 1, a biasing spring 18 for urging the first spindle 1 toward the second spindle 2 is provided between the sealed end of the case and the first spindle 1 in the present embodiment. On the one hand, the pre-tightening spring 18 can make good contact with the abutting surface between the first mandrel 1 and the second mandrel 2 by using elastic force, and prevent water from seeping out of the abutting surface. On the other hand, after the binding surface is abraded, the first mandrel 1 can move axially under the action of elastic force, so that the compensation effect is achieved, and the service life of the rotary joint can be prolonged.
As shown in fig. 1, in this embodiment, the side wall of the housing is provided with a nozzle 19 for feeding lubricating oil into the lubricating chamber 4. The side wall of the shell is provided with an oil nozzle 19, so that lubricating oil can be conveniently added into the lubricating cavity 4. Optionally, the nipple 19 communicates with the lubrication chamber 4 between the first bearing 15 and the second bearing 16.
As shown in fig. 1, in the present embodiment, the housing includes a first housing 20 for forming a sealed end of the housing and a second housing 21 for forming an open end of the housing, and the first housing 20 is detachably connected to the second housing 21. The first housing 20 is detachably connected to the second housing 21, and the first housing 20 can be conveniently disassembled and assembled, so that the internal structure can be conveniently assembled, and the maintenance and the repair can be conveniently realized. Optionally, the first housing 20 and the second housing 21 are connected by screws.
As shown in fig. 3, a preferred embodiment of the present invention further provides a road surface cleaning device, which includes the above-mentioned rotary joint, a rotary member 22 connected to the second spindle 2 of the rotary joint and used for driving the second spindle 2 to rotate, an installation joint 23 connected to the rotary member 22 and connected to the end surface of the second spindle 2 in a sealing manner, a spray bar 24 connected to the installation joint 23, and a nozzle 25 disposed at the output end of the spray bar 24, wherein the installation joint 23 is provided with a fourth through hole 26 communicated with the third through hole 7 on the second spindle 2, and the spray bar 24 is provided with a fifth through hole 27 communicated with the fourth through hole 26, so as to form a second water flow channel through which water flows from the third through hole 7 to the nozzle 25. During operation, high-pressure water flows from the rotary joint to the nozzle 25, and the nozzle 25 sprays the high-pressure water to form a high-pressure water jet, thereby cleaning the road surface. Install this road surface belt cleaning device on the washing and sweeping vehicle, under certain driving speed, rationally set for the rotation rate of rotating member 22, rotating member 22 is rotatory to drive second dabber 2 and spray lance 24 rotatory, can realize that high pressure water jet carries out multiple washing to the same region on road surface for abluent homogeneity is good, and has very strong dirt-removing power. Particularly, when the mud and dust adhered to the road surface are thick, the road surface cleaning device is used for multiple cleaning, and the cleaning effect is good. Alternatively, the rotary member 22 employs a pulley or a gear. Optionally, the second mandrel 2 and the rotating member 22 are connected by screws, and the rotating member 22 and the second mandrel 2 are connected into a whole, so that the structure is simple and compact, the installation space can be reduced, and the stress state of the bearing assembly can be improved. Alternatively, the rotating member 22 and the mounting adapter 23 are connected by screws. Alternatively, a seal ring may be provided on the abutting surface between the second mandrel 2 and the mount joint 23, so that high-pressure water can be prevented from seeping out.
As shown in fig. 3 and 4, in this embodiment, an internal threaded hole is formed in the mounting joint 23, a protruding ring 28 is disposed at the input end of the spray rod 24, a locking nut 29 is sleeved on the spray rod 24, an external thread in threaded fit with the internal threaded hole is disposed on the locking nut 29, and the input end of the spray rod 24 extends into the internal threaded hole and is screwed with the internal threaded hole through the locking nut 29, so that the locking nut 29 abuts against the protruding ring 28, and the spray rod 24 is pressed in the internal threaded hole. The input end of the spray rod 24 extends into the internal thread hole on the mounting connector 23, the locking nut 29 sleeved on the spray rod 24 is rotated to enable the locking nut 29 to be screwed with the internal thread hole, the locking nut 29 abuts against the convex ring 28 on the spray rod 24, the spray rod 24 is pressed in the internal thread hole, and therefore the spray rod 24 is mounted on the mounting connector 23.
In the present embodiment, as shown in fig. 3 and 5, a guide groove is formed on the hole wall of the internal threaded hole, and a boss 30 for extending into the guide groove to circumferentially position the spray bar 24 is provided on the protruding ring 28. In order to ensure the stability of the water jet angle, a boss 30 is arranged on the convex ring 28, a guide groove is arranged on the hole wall of the internal threaded hole, when the input end of the spray rod 24 extends into the internal threaded hole, the boss 30 extends into the guide groove, and then the spray rod 24 is screwed and fixed by a locking nut 29, so that the spray rod 24 is circumferentially positioned.
As shown in fig. 6, in the present embodiment, the output end of the nozzle 25 is biased toward the rotational direction of the rotary member 22. In order to achieve a higher road cleaning capacity, the output end of the nozzle 25 is biased to one side of the rotation direction of the rotary member 22, so that a certain included angle is formed between the high-pressure water jet and the road surface, which can generate a stronger impact force to the road surface. Optionally, the nozzle 25 has an angle between the axial direction and the vertical direction of 3 ° to 50 °.
As shown in fig. 7, in the present embodiment, the number of the spray bars 24 is set to at least two, and at least two spray bars 24 are arranged at regular intervals in the circumferential direction of the mounting joint 23. In order to achieve higher road surface cleaning capacity, the number of the spray bars 24 is set to two or more, preferably three. The internal thread holes are arranged along the radial direction of the mounting joint 23, the internal thread holes are arranged along the circumferential direction of the mounting joint 23 at even intervals, the spray rods 24 are arranged in one-to-one correspondence with the internal thread holes, and the nozzles 25 are arranged in one-to-one correspondence with the spray rods 24. The high-pressure water jets sprayed by the nozzles 25 have no overlapping requirement, and the influence on the pavement cleaning effect caused by residual sewage due to poor overlapping is avoided.
The invention also provides a washing and sweeping vehicle which comprises the road surface cleaning device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A rotary joint comprises a shell, a first mandrel (1) which is arranged in the shell and is matched with a sealing end of the shell to carry out circumferential positioning, a second mandrel (2) which is arranged in the shell and is rotatably attached to the end surface of the first mandrel (1), a first sealing element which is sleeved on the second mandrel (2) and is used for sealing an opening end of the shell, a second sealing element which is sleeved on the second mandrel (2) and is used for separating an inner cavity of the shell into a water storage cavity (3) and a lubricating cavity (4), and a bearing assembly which is sleeved on the second mandrel (2) and is positioned in the lubricating cavity (4), wherein the second mandrel (2) is rotatably arranged in the shell through the bearing assembly,
a first through hole (5) is arranged at the sealing end of the shell, a second through hole (6) communicated with the first through hole (5) is arranged on the first mandrel (1), a third through hole (7) communicated with the second through hole (6) is arranged on the second mandrel (2) to form a first water flow channel for water flow to flow from the first through hole (5) to the third through hole (7),
it is characterized in that the preparation method is characterized in that,
offer on first dabber (1) be used for with water storage chamber (3) with siphon hole (8) of second through-hole (6) intercommunication, the axial of siphon hole (8) and the contained angle between the rivers direction are the obtuse angle, so that infiltration in the first rivers passageway water in the water storage chamber (3) passes through under the siphon effect siphon hole (8) flow back to in the first rivers passageway, thereby reduce water infiltration in the water storage chamber (3) risk in the lubrication chamber (4).
2. The swivel joint of claim 1,
the second through-hole (6) include shrink section (9), stable section (10) and expansion section (11) that set gradually along the rivers direction, the radial dimension of shrink section (9) reduces along the rivers direction gradually, the radial dimension of expansion section (11) enlarges along the rivers direction gradually, siphon hole (8) with stable section (10) intercommunication.
3. The swivel joint of claim 1,
the first sealing element is a first framework oil seal (12) sleeved on the second mandrel (2), and a lip of the first framework oil seal (12) faces the lubricating cavity (4);
the second sealing element comprises a second framework oil seal (13) sleeved on the second mandrel (2) and a third framework oil seal (14) sleeved on the second mandrel (2) and symmetrically arranged with the second framework oil seal (13),
the lip of second skeleton oil blanket (13) orientation water storage chamber (3), the lip of third skeleton oil blanket (14) orientation lubrication chamber (4).
4. The swivel joint of claim 1,
the bearing assembly comprises a first bearing (15) sleeved on the second mandrel (2), a second bearing (16) sleeved on the second mandrel (2) and arranged at an interval with the first bearing (15), and a bushing (17) sleeved on the second mandrel (2) and located between the first bearing (15) and the second bearing (16), wherein the second mandrel (2) is rotatably arranged in the shell through the first bearing (15) and the second bearing (16).
5. The swivel joint of claim 1,
and a pre-tightening spring (18) used for forcing the first mandrel (1) to compress towards the second mandrel (2) is arranged between the sealing end of the shell and the first mandrel (1).
6. The swivel joint of claim 1,
and the side wall of the shell is provided with a nozzle (19) which is convenient for adding lubricating oil into the lubricating cavity (4).
7. A swivel joint according to any one of claims 1 to 6,
the shell comprises a first shell (20) and a second shell (21), wherein the first shell (20) is used for forming a sealing end of the shell, the second shell (21) is used for forming an opening end of the shell, and the first shell (20) is detachably connected with the second shell (21).
8. A road surface cleaning device is characterized in that,
comprising a rotary joint according to any one of claims 1 to 7, a rotary member (22) connected to the second mandrel (2) of the rotary joint for rotating the second mandrel (2), a mounting joint (23) connected to the rotary member (22) and sealingly connected to an end face of the second mandrel (2), a spray bar (24) connected to the mounting joint (23), and a spray nozzle (25) arranged at an output end of the spray bar (24),
a fourth through hole (26) communicated with the third through hole (7) in the second mandrel (2) is formed in the mounting joint (23), and a fifth through hole (27) communicated with the fourth through hole (26) is formed in the spray rod (24) so as to form a second water flow channel through which water flows from the third through hole (7) to the nozzle (25).
9. The road surface cleaning device according to claim 8,
the internal thread hole has been seted up on erection joint (23), the input of spray lance (24) is equipped with bulge loop (28), the cover is equipped with lock nut (29) on spray lance (24), be equipped with on lock nut (29) with internal thread hole screw-thread fit's external screw thread, the input of spray lance (24) stretches into in the internal thread hole and pass through lock nut (29) with the internal thread hole is screwed up, so that lock nut (29) top is supported bulge loop (28), thereby will spray lance (24) compress tightly in the internal thread hole.
10. The road surface cleaning device according to claim 9,
a guide groove is formed in the hole wall of the internal thread hole, and a boss (30) which is used for extending into the guide groove to circumferentially position the spray rod (24) is arranged on the convex ring (28).
11. The road surface cleaning device according to claim 8,
the output end of the nozzle (25) is deviated to the rotating direction of the rotating member (22);
the included angle between the axial direction and the vertical direction of the nozzle (25) is 3-50 degrees.
12. A road surface cleaning device according to any one of claims 8 to 11,
the number of the spray rods (24) is at least two, and the at least two spray rods (24) are uniformly distributed at intervals along the circumferential direction of the mounting connector (23).
13. A washing and sweeping vehicle, which is characterized in that,
a road surface cleaning device comprising the apparatus as claimed in any one of claims 8 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045267.1A CN110924337B (en) | 2019-10-30 | 2019-10-30 | Rotary joint, road surface cleaning device and washing and sweeping vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045267.1A CN110924337B (en) | 2019-10-30 | 2019-10-30 | Rotary joint, road surface cleaning device and washing and sweeping vehicle |
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| CN110924337A true CN110924337A (en) | 2020-03-27 |
| CN110924337B CN110924337B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911045267.1A Active CN110924337B (en) | 2019-10-30 | 2019-10-30 | Rotary joint, road surface cleaning device and washing and sweeping vehicle |
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| Country | Link |
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| CN (1) | CN110924337B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024506A (en) * | 2020-09-11 | 2020-12-04 | 苏州清江精密机械科技有限公司 | Ultrahigh-pressure water slip ring |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2450991A1 (en) * | 1979-03-08 | 1980-10-03 | Pingeot Bardin Ets | Two=way lift valve for beer barrel - has double closure sprung hollow piston to admit gas under pressure and connect siphon nozzle to beer line |
| CN203703443U (en) * | 2013-12-10 | 2014-07-09 | 天津市鑫利得工贸有限公司 | Rotary joint assembly |
| CN204358304U (en) * | 2014-12-25 | 2015-05-27 | 申如意 | A kind of chicksan for wind-powered electricity generation hydraulic system |
| CN104674742A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotary joint, sweeping disc and road cleaning vehicle |
| CN104674732A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotary joint, sweeping disc and road cleaning vehicle |
| CN205504282U (en) * | 2016-01-19 | 2016-08-24 | 广州弘锐精密机械有限公司 | Rotary joint |
| CN206072603U (en) * | 2016-10-12 | 2017-04-05 | 山东飞越机械有限公司 | New self-supporting swivel joint |
| CN107300080A (en) * | 2017-06-30 | 2017-10-27 | 山东鑫海矿业技术装备股份有限公司 | It is a kind of while conveying the gentle swivel joint of water |
-
2019
- 2019-10-30 CN CN201911045267.1A patent/CN110924337B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2450991A1 (en) * | 1979-03-08 | 1980-10-03 | Pingeot Bardin Ets | Two=way lift valve for beer barrel - has double closure sprung hollow piston to admit gas under pressure and connect siphon nozzle to beer line |
| CN104674742A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotary joint, sweeping disc and road cleaning vehicle |
| CN104674732A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotary joint, sweeping disc and road cleaning vehicle |
| CN203703443U (en) * | 2013-12-10 | 2014-07-09 | 天津市鑫利得工贸有限公司 | Rotary joint assembly |
| CN204358304U (en) * | 2014-12-25 | 2015-05-27 | 申如意 | A kind of chicksan for wind-powered electricity generation hydraulic system |
| CN205504282U (en) * | 2016-01-19 | 2016-08-24 | 广州弘锐精密机械有限公司 | Rotary joint |
| CN206072603U (en) * | 2016-10-12 | 2017-04-05 | 山东飞越机械有限公司 | New self-supporting swivel joint |
| CN107300080A (en) * | 2017-06-30 | 2017-10-27 | 山东鑫海矿业技术装备股份有限公司 | It is a kind of while conveying the gentle swivel joint of water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024506A (en) * | 2020-09-11 | 2020-12-04 | 苏州清江精密机械科技有限公司 | Ultrahigh-pressure water slip ring |
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| Publication number | Publication date |
|---|---|
| CN110924337B (en) | 2021-06-01 |
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